CN101388722A - Uplink synchronization method, base station and customer equipment - Google Patents
Uplink synchronization method, base station and customer equipment Download PDFInfo
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- CN101388722A CN101388722A CNA2008102254990A CN200810225499A CN101388722A CN 101388722 A CN101388722 A CN 101388722A CN A2008102254990 A CNA2008102254990 A CN A2008102254990A CN 200810225499 A CN200810225499 A CN 200810225499A CN 101388722 A CN101388722 A CN 101388722A
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Abstract
The invention discloses an uplink synchronization control method, a base station and a user device thereof. Wherein the method comprises: selecting a reference uplink communication channel from different uplink communication channels of one user device according to prearranged selecting principles, taking the timing initial lead of the reference uplink communication channel as the uniform timing initial lead of each uplink communication channel, carrying out uplink synchronization control to each uplink communication channel according to the uniform timing initial lead, and thereby improving the data throughput.
Description
Technical field
The present invention relates to mobile communication technology, relate in particular to a kind of ascending synchronous control method, base station and subscriber equipment (UE).
Background technology
In the mobile communication technology field, two or more up channel might appear in sub-frame of uplink or the time slot simultaneously.With TD-SCDMA (TD SDMA) system is example, and these up channels can comprise: E-PUCH continuous or discrete up DPCH (DPCH), HS-SICH (high speed HS-DSCH shares information channel), scheduling and non-scheduling (E-DCH physical uplink channel) etc.
In order to realize the synchronous of each up channel, UE need send uplink synchronous code and carry out uplink synchronous for Node B (base station) in ascending time slot.Wherein, the Timing Advance (TA) that sends uplink synchronous code calculated according to the time difference of the timing of the timing of Node B and UE.In addition, because generally UE is in the motion attitude, so Node B also needs according to the situation of UE the Timing Advance that UE sends uplink synchronous code to be adjusted the control of realization uplink synchronous.
At present, the uplink synchronous control to different up channels is the method for taking each channel independently to control.For example, in the TD-SCDMA system, simultaneous bias (SS) order that the control of the uplink synchronous of up DPCH uses descending DPCH or PLCCH (public physic channel) to carry.During specific implementation, the time of NodeB continuous measurement UE, and the SS that sends necessity in each subframe orders, UE orders the SS in the corresponding control time slot of preceding M subframe that receives and makes up, be judged as ' downward modulation ' when the SS of combination orders, the emission of the controlled ascending time slot of UE regularly will postpone k/8 chip period; When order is judged as ' rise ', the emission of the controlled ascending time slot of UE regularly will shift to an earlier date k/8 chip period; When order is judged as ' uncomfortable ', then do not change timing.Wherein, k is the step-length of adjusting synchronously, and the value of k is disposed by high level.After initial uplink was set up synchronously, Node B and UE began to enter closed-loop uplink Synchronization Control program, and this process is connecting execution continuously under the DPCH pattern.
The synchronous Timing Advance of the initial uplink of HS-SICH is taken from the up DPCH that follows.UE will order the synchronization timing of adjusting HS-SICH by the SS of HS-SCCH (High-Speed Shared Control Channel) transmission afterwards.In some cases, if the HS-SCCH of one or more subframe transmission is interrupted, when making UE can't receive the SS order, UE can order the synchronization timing of adjusting HS-SICH according to the SS on the descending DPCH that follows, till HS-SCCH is received once more.
The uplink synchronous control procedure of E-PUCH and the Synchronization Control process of up DPCH are similar.Wherein, the E-PUCH of scheduling uses the SS order of carrying on the E-AGCH (E-DCH absolute grant channel) to adjust synchronously; The E-PUCH of non-scheduling uses the SS order of carrying on the E-HICH (E-DCH mixed automatic re-transmission indicating channel) to adjust synchronously.In addition, if disposed up DPCH, then the synchronization timing of E-PUCH can directly be set to the synchronization timing of DPCH.If disposed non-scheduled transmission, then the synchronization timing of scheduling E-PUCH can directly be set to the synchronization timing of non-scheduling E-PUCH.
By said process as can be seen, when multiple up channel coexists in same subframe or the time slot, will produce a plurality of Timing Advances, and the possible value difference of these a plurality of Timing Advances, so, the burst that corresponding different up channels send on different code channels will not line up in time, and especially this problem of situation that coexists in same time slot for multiple up channel is more outstanding, makes that the orthogonality between code channel reduces, produce each other and disturb, influence the quality of reception.
Summary of the invention
In view of this, provide a kind of ascending synchronous control method on the one hand among the present invention, a kind of base station and UE are provided on the other hand, to improve receptivity.
Ascending synchronous control method provided by the present invention comprises:
From the different up channels of the current configuration of same user equipment (UE), choose a timing base up channel according to the selection rule of setting;
With the Timing Advance of described timing base up channel unified Timing Advance as each up channel of the current configuration of this UE;
According to described unified Timing Advance current each up channel to be sent of this UE is carried out uplink synchronous control.
Preferably, the different up channels of the current configuration of described same UE comprise: the continuous uplink special physical channel DPCH in the TD SDMA TD-SCDMA system, discrete up DPCH, high speed HS-DSCH share any two kinds or multiple arbitrarily among the E-PUCH of the E-DCH physical uplink channel E-PUCH of information channel HS-SICH, scheduling and non-scheduling.
Preferably, the selection rule of described setting comprises: when comprising continuous up DPCH in the different up channels of the current configuration of described same UE, choose described continuous up DPCH as the timing base up channel.
Preferably, the selection rule of described setting further comprises: when not comprising continuous up DPCH in the different up channels of the current configuration of described same UE, choose the timing base up channel from other up channel.
Preferably, the described timing base up channel of choosing from other up channel is: when comprising discontinuous up DPCH in the different up channels of the current configuration of described same UE, choose described discontinuous up DPCH as the timing base up channel.
Preferably, describedly according to unified Timing Advance current each up channel to be sent of this UE is carried out uplink synchronous control and comprise: UE adjusts the unified Timing Advance of current each up channel to be sent according to the simultaneous bias SS order of carrying on descending DPCH or the public physic channel PLCCH, and ignores the SS that carries on other down channel except that described descending DPCH or PLCCH and order.
Preferably, describedly according to unified Timing Advance current each up channel to be sent of this UE is carried out uplink synchronous control and further comprises: base station node B be carried at SS on other down channel except that described descending DPCH or PLCCH order be set to invalid.
Perhaps, the described timing base up channel of choosing from other up channel is: when comprising the E-PUCH of discontinuous up DPCH and non-scheduling in the different up channels of the current configuration of described same UE, choose and send less at interval up channel in the two as the timing base up channel.
Preferably, describedly according to unified Timing Advance current each up channel to be sent of this UE is carried out uplink synchronous control and comprise: the SS order of carrying on the down channel of UE according to selected up channel correspondence is adjusted the unified Timing Advance of current each up channel to be sent, and ignores the SS that carries on other down channel except that the down channel of described selected up channel correspondence and order.
Preferably, describedly according to unified Timing Advance current each up channel to be sent of this UE is carried out uplink synchronous control and further comprises: Node B be carried at SS on other down channel the down channel that removes described selected up channel correspondence order be set to invalid.
Perhaps, the described timing base up channel of choosing from other up channel is: choice of dynamical the last time is finished the up channel of up transmission as current timing base up channel from other up channel.
Preferably, describedly according to unified Timing Advance current each up channel to be sent of this UE is carried out uplink synchronous control and comprise: the simultaneous bias SS order of carrying on the down channel that UE received according to the last time is adjusted the unified Timing Advance of current each up channel to be sent.
Preferably, the simultaneous bias SS order of carrying on the down channel that described UE received according to the last time further comprises before the unified Timing Advance of current each up channel to be sent is adjusted:
Node B calculates new Timing Advance, according to the adjustment step-length number that the Timing Advance needs are adjusted, determines the SS command number M that needs;
When the down channel that is used for the up channel transmission SS order of corresponding current configuration less than UE at described SS command number M is counted N, Node B chooses M down channel and sends SS order one by one from a described N down channel, and the SS in other N-M down channel order be set to invalid; Perhaps Node B chooses down channel and sends the SS order from a described N down channel, and the SS in other N-1 down channel order be set to invalid.
Preferably, described new Timing Advance is: the Timing Advance that calculates according to any one up channel in a plurality of up channels that receive in the current subframe;
Perhaps be: the weighted average of the Timing Advance that calculates according to each up channel that receives in the current subframe;
Perhaps be: according to a Timing Advance that up channel calculates that receives in the current subframe.
Base station provided by the present invention comprises:
The benchmark determining unit, be used for choosing a timing base up channel from the different up channels of the current configuration of same UE, with the Timing Advance of described timing base up channel unified Timing Advance as each up channel of the current configuration of this UE according to the selection rule of setting;
Synchronous control unit is used for according to described unified Timing Advance current each up channel to be sent of this UE being carried out uplink synchronous control.
Preferably, described benchmark determining unit comprises that first benchmark chooses subelement, when being used for different up channels in the current configuration of same UE and comprising continuous up DPCH, chooses described continuous up DPCH as the timing base up channel;
Described synchronous control unit comprises the first Synchronization Control subelement, be used for calculating new Timing Advance according to described continuous up DPCH, and obtain being carried at SS order on descending DPCH or the PLCCH according to described new Timing Advance, the SS on other down channel except that described descending DPCH or PLCCH order be set to invalid.
Preferably, described benchmark determining unit comprises that further second benchmark chooses subelement, be used for that different up channels in the current configuration of same UE do not comprise continuous up DPCH and when comprising discontinuous up DPCH, choose described discontinuous up DPCH as the timing base up channel;
Described synchronous control unit further comprises the second Synchronization Control subelement, be used for calculating new Timing Advance according to described discontinuous up DPCH, and obtain being carried at SS order on descending DPCH or the PLCCH according to described new Timing Advance, the SS on other down channel except that described descending DPCH or PLCCH order be set to invalid.
Perhaps, described benchmark determining unit comprises that further the 3rd benchmark chooses subelement, be used for that different up channels in the current configuration of same UE do not comprise continuous up DPCH and when comprising the E-PUCH of discontinuous up DPCH and non-scheduling, choose and send less at interval up channel in the two as the timing base up channel;
Described synchronous control unit further comprises the 3rd Synchronization Control subelement, be used for calculating new Timing Advance according to selected up channel, and obtain being carried at SS order on the down channel of corresponding selected up channel according to described new Timing Advance, the SS on other down channel except that the down channel of the selected up channel of described correspondence order be set to invalid.
Perhaps, described benchmark determining unit comprises that further the 4th benchmark chooses subelement, when being used for different up channels in the current configuration of same UE and not comprising continuous up DPCH, choice of dynamical the last time is finished the up channel of up transmission as current timing base up channel from other up channel;
Described synchronous control unit further comprises the 4th Synchronization Control subelement, any one up channel in a plurality of up channels that are used for receiving according to current subframe calculates new Timing Advance, or after calculating a Timing Advance respectively according to each up channel that receives in the current subframe, the weighted average of each Timing Advance as new Timing Advance, or is calculated new Timing Advance according to a up channel that receives in the current subframe; According to the adjustment step-length number that the Timing Advance needs are adjusted, determine the SS command number M that needs; When the down channel that is used for the up channel transmission SS order of corresponding current configuration less than UE at described SS command number M is counted N, Node B chooses M down channel and sends a SS order one by one from a described N down channel, and the SS in other N-M down channel order be set to invalid, perhaps Node B chooses down channel and sends the SS order from a described N down channel, and the SS in other N-1 down channel order be set to invalid.
UE provided by the present invention comprises:
The benchmark determination module, be used for choosing a timing base up channel from the different up channels of the current configuration of self UE, with the Timing Advance of described timing base up channel unified Timing Advance as each up channel of current configuration according to the selection rule of setting;
Synchronization control module is used for according to described unified Timing Advance current each up channel to be sent being carried out uplink synchronous control.
Preferably, described benchmark determination module comprises that first benchmark chooses submodule, when being used for different up channels in the current configuration of self UE and comprising continuous up DPCH, chooses described continuous up DPCH as the timing base up channel;
Described synchronization control module comprises the first Synchronization Control submodule, is used for according to the simultaneous bias SS that carries on descending DPCH or public physic channel PLCCH order the unified Timing Advance of current each up channel to be sent being adjusted.
Perhaps, described benchmark determination module comprises that further second benchmark chooses submodule, be used for that different up channels in the current configuration of self UE do not comprise continuous up DPCH and when comprising discontinuous up DPCH, choose described discontinuous up DPCH as the timing base up channel.
Perhaps, described benchmark determination module comprises that further the 3rd benchmark chooses submodule, be used for that different up channels in the current configuration of self UE do not comprise continuous up DPCH and when comprising the E-PUCH of discontinuous up DPCH and non-scheduling, choose and send less at interval up channel in the two as the timing base up channel;
Described synchronization control module comprises the 3rd Synchronization Control submodule, and the SS order that is used for carrying on the down channel according to selected up channel correspondence is adjusted the unified Timing Advance of current each up channel to be sent.
Perhaps, described benchmark determination module comprises that further the 4th benchmark chooses submodule, when being used for different up channels in the current configuration of self UE and not comprising continuous up DPCH, choice of dynamical the last time is finished the up channel of up transmission as current timing base up channel from other up channel;
Described synchronization control module comprises the 4th Synchronization Control submodule, and the simultaneous bias SS that carries on the down channel that is used for receiving according to the last time order is adjusted the unified Timing Advance of current each up channel to be sent.
From such scheme as can be seen, safeguard a unified Timing Advance by different up channels among the present invention to same UE, the up transmission of each up channel is as the criterion with this Timing Advance, thereby make when in a subframe or time slot, having multiple up channel, the burst that corresponding different up channels send on different code channels can be alignd in time, strengthen the orthogonality between code channel, improved receptivity.
During specific implementation, for the TD-SCDMA system, because the Synchronization Control of continuous up DPCH is a kind of successive control when closed-loop power control, when therefore being the Timing Advance of each up channel with the Timing Advance of this up DPCH, the more simple and reliable property of Synchronization Control process is higher.
Further, when network does not dispose continuous up DPCH to UE, by the Timing Advance of up channel that rational rule chooses other being set as the Timing Advance of each up channel, according to this Timing Advance current each up channel to be sent of this UE is carried out uplink synchronous control, improved the receptivity of system.
Description of drawings
Fig. 1 is the exemplary process diagram of ascending synchronous control method in the embodiment of the invention;
The schematic diagram that Fig. 2 a to Fig. 2 c is the example one enumerated in the embodiment of the invention channel sends to the example three;
Fig. 3 is the exemplary block diagram of base station in the embodiment of the invention;
Fig. 4 a to Fig. 4 c is several internal structure schematic diagrames of base station in the TD-SCDMA system in the embodiment of the invention;
Fig. 5 is the exemplary block diagram of UE in the embodiment of the invention;
Fig. 6 a to Fig. 6 c is several internal structure schematic diagrames of UE in the TD-SCDMA system in the embodiment of the invention.
Embodiment
In the embodiment of the invention, in order to improve receptivity, strengthen the orthogonality between code channel, can safeguard a unified Timing Advance to the different up channels of same UE, the up transmission of each up channel is as the criterion with this Timing Advance.
For making the purpose, technical solutions and advantages of the present invention clearer, below in conjunction with embodiment and accompanying drawing, the present invention is described in more detail.
Fig. 1 is the exemplary process diagram of ascending synchronous control method in the embodiment of the invention.As shown in Figure 1, this flow process comprises the steps:
Wherein, according to different network systems and actual needs, the selection rule that sets may be different.Be that example is described all in the embodiment of the invention with the TD-SCDMA system.In the TD-SCDMA system, the different up channels of the current configuration of same UE can comprise: among continuous up DPCH, discrete up DPCH, HS-SICH, the E-PUCH of scheduling and the E-PUCH of non-scheduling etc. any two kinds or multiple arbitrarily.
Wherein, because the Synchronization Control of continuous up DPCH is a kind of successive control when closed-loop power control, when therefore being the Timing Advance of each up channel as if the Timing Advance with this up DPCH, then the more simple and reliable property of Synchronization Control process is higher.Given this, selection rule in the present embodiment can comprise: when comprising continuous up DPCH (being the network up DPCH continuous for this UE has disposed) in the different up channels of the current configuration of same UE, can choose described continuous up DPCH as the timing base up channel.
In addition, if network does not comprise continuous up DPCH not to the continuous up DPCH of current UE configuration in the different up channels of the i.e. current configuration of UE, can choose a timing base up channel this moment from other up channel.Concrete choosing method can comprise following two class situations:
The first kind: choose fixing timing base up channel.In such, can comprise following dual mode at least.
Mode one: when in the different up channels of the current configuration of UE, comprising discontinuous up DPCH, can choose this discontinuous up DPCH as the timing base up channel, promptly as long as discontinuous up DPCH exists, other all channels comprise that the Timing Advance of non-scheduling E-PUCH, scheduling E-PUCH and HS-SICH all takes from the Timing Advance of discontinuous up DPCH.
Mode two: when in the different up channels of the current configuration of UE, comprising the E-PUCH of discontinuous up DPCH and non-scheduling, choose and send less at interval up channel in the two as the timing base up channel.At this moment, the Timing Advance of the E-PUCH of another one channel and scheduling, HS-SICH is all got the Timing Advance of selected up channel.
Second class: choose indefinite timing base up channel.
When network did not dispose continuous up DPCH to UE, other channels comprised that the E-PUCH of discrete up DPCH, HS-SICH, scheduling and the E-PUCH of non-scheduling are not continuous in time.Each up channel unification can be carried out Synchronization Control in the present embodiment, can make using mutually synchronously of each up channel like this, and make full use of the Synchronization Control instruction, thereby the synchronization accuracy of raising UE improves the error rate of single UE.Promptly when not having continuous up DPCH to exist, do not establish definite timing reference channel between discrete DPCH, HS-SICH and the E-PUCH, the Timing Advance that the Timing Advance of the uplink synchronous of each channel is finished the up channel of up transmission on same subframe or the same time slot according to the last time is determined.Promptly choose the last time dynamically and finish the up channel of up transmission as current timing base up channel.
Below by three examples, the situation in such is described in detail.
Example one: shown in Fig. 2 a, Fig. 2 a is that the channel in the example one sends schematic diagram, and the little lattice of each among the figure are represented a subframe.Wherein, at interval, existing up channel has down channel again to the up-downgoing channel in the promptly same subframe one by one.Among Fig. 2 a, owing in first subframe, sent a plurality of up channels simultaneously, therefore for second subframe, can from these up channels, choose some up channels as current timing base up channel, with the Timing Advance of this up channel unified lead as current each channel.Perhaps, also can be with the weighted average of the Timing Advance of these up channels unified lead as current each channel.
Example two: shown in Fig. 2 b, Fig. 2 b is that the channel in the example two sends schematic diagram, and the little lattice of each among the figure are represented a subframe.Wherein, the sub-frame of uplink number is greater than the descending sub frame number.Among Fig. 2 b, owing in the 3rd subframe, only sent E-PUCH, therefore for the 4th subframe, can be with this E-PUCH as current timing base up channel, with the Timing Advance of this E-PUCH unified lead as current each channel.
Example three: shown in Fig. 2 c, Fig. 2 c is that the channel in the example three sends schematic diagram, and the little lattice of each among the figure are represented a subframe.Wherein, the descending sub frame number is greater than the sub-frame of uplink number.Among Fig. 2 c, owing in the 5th subframe, only sent E-PUCH, therefore for the 6th subframe, can be with this E-PUCH as current timing base up channel, with the Timing Advance of this E-PUCH unified lead as current each channel.
Step 102 is carried out uplink synchronous control according to determined unified Timing Advance to current each up channel to be sent of this UE.
During specific implementation, for with the Timing Advance of continuous up DPCH or discrete DPCH situation as the unified fixed pattern lead of each channel, Node B can calculate new Timing Advance according to this continuous up DPCH or discrete DPCH, and the SS that obtains being carried on descending DPCH or the PLCCH according to the new Timing Advance that is calculated orders.Further, the SS order of Node B on can other down channel except that descending DPCH or PLCCH is set to invalid (as being set to Do Nothing).
At this moment, UE can adjust the unified Timing Advance of current each up channel to be sent according to the SS that carries on descending DPCH or PLCCH order, and ignores the SS that carries on other down channel except that descending DPCH or PLCCH and order.If ordering, the SS on Node B other down channel except that descending DPCH or PLCCH is set to when invalid, UE also can not ignore the SS order of carrying on other down channel, but it is invalid that be set to owing to these SS order this moment, therefore also can make the adjustment of Timing Advance inoperative.
For with the Timing Advance of the E-PUCH of non-scheduling situation as the unified fixed pattern lead of each channel, Node B can calculate new Timing Advance according to the E-PUCH of this non-scheduling, and the SS that obtains being carried on HS-SCCH or the descending DPCH according to the new Timing Advance that is calculated orders.Further, Node B can be set to invalid (as being set to Do Nothing) except that the order of the SS on other down channel HS-SCCH or the descending DPCH.
At this moment, UE can adjust the unified Timing Advance of current each up channel to be sent according to the SS on HS-SCCH or descending DPCH order, and ignores the SS that carries on other down channel except that HS-SCCH or descending DPCH and order.If ordering, the SS on Node B other down channel except that HS-SCCH or descending DPCH is set to when invalid, UE also can not ignore the SS order of carrying on other down channel, but it is invalid that be set to owing to these SS order this moment, therefore also can make the adjustment of Timing Advance inoperative.
For the Timing Advance of the up channel of finishing up transmission with the last time situation as the unified fixed pattern lead of each channel, Node B can calculate new Timing Advance according to any one up channel in a plurality of up channels that receive in the current subframe, or after calculating a Timing Advance respectively according to each up channel that receives in the current subframe, the weighted average of each Timing Advance as new Timing Advance, or is calculated new Timing Advance according to a up channel that receives in the current subframe.Afterwards, adjustment step-length number according to the adjustment of Timing Advance needs, definite SS command number M that needs, when the down channel that is used for the up channel transmission SS order of corresponding current configuration less than UE at this SS command number M is counted N, Node B can choose M down channel and send SS order one by one from a described N down channel, the SS in further can other N-M down channel order be set to invalid.At this moment, bigger adjustment step-length can be arranged, make convergence rate very fast, just the processing meeting of Node B is more.When perhaps the down channel that is used for the up channel transmission SS order of corresponding current configuration less than UE at this SS command number M is counted N, NodeB also can choose down channel and send the SS order from a described N down channel, and the SS in further can other N-1 down channel order be set to invalid.At this moment, the processing of Node B is simple relatively, is that each adjustment amount is limited, makes convergence rate slower.
At this moment, the simultaneous bias SS order of carrying on the down channel that UE can receive according to the last time is adjusted the unified Timing Advance of current each up channel to be sent.For example, for Fig. 2 b in the example two, the E-PUCH that on the E-PUCH that sends on second subframe and the 3rd subframe, sends, all carry out Synchronization Control according to the SS on the descending DPCH in first subframe, i.e. the Timing Advance of up transmission is the Timing Advance+SS adjustment amount of first subframe correspondence.For Fig. 2 c in the example three, if the SS on the SCCH/AGCH/HICH that the AGCH that NodeB sends second subframe and the 3rd subframe send all is set to Do Nothing, the E-PUCH that sends on the E-PUCH that sends on the 4th subframe and the 5th subframe then, all carry out Synchronization Control according to the SS on the descending DPCH in first subframe, i.e. the Timing Advance of up transmission is the Timing Advance+SS adjustment amount of first subframe correspondence.
More than the ascending synchronous control method in the embodiment of the invention is described in detail, again base station in the embodiment of the invention and UE are described in detail below.
Fig. 3 is the exemplary block diagram of base station in the embodiment of the invention.As shown in Figure 3, this base station comprises: benchmark determining unit and synchronous control unit.
Wherein, the benchmark determining unit is used for choosing a timing base up channel according to the selection rule of setting from the different up channels of the current configuration of same UE, with the Timing Advance of the described timing base up channel unified Timing Advance as each up channel of the current configuration of this UE.
Synchronous control unit is used for according to described unified Timing Advance current each up channel to be sent of this UE being carried out uplink synchronous control.
During specific implementation, according to different network systems and actual needs, the benchmark determining unit in the base station and
Synchronous control unit can have multiple specific implementation form.
With the TD-SCDMA system is example, and Fig. 4 a to Fig. 4 c is several internal structure schematic diagrames of base station in the TD-SCDMA system in the embodiment of the invention.Shown in the solid line among Fig. 4 a to Fig. 4 c part, the benchmark determining unit can comprise that first benchmark chooses subelement, and synchronous control unit can comprise the first Synchronization Control subelement.
Wherein, when first benchmark is chosen subelement and is used for different up channels in the current configuration of same UE and comprises continuous up DPCH, choose described continuous up DPCH as the timing base up channel.
The first Synchronization Control subelement is used for calculating new Timing Advance according to described continuous up DPCH, and obtain being carried at SS order on descending DPCH or the PLCCH according to described new Timing Advance, the SS on other down channel except that described descending DPCH or PLCCH order be set to invalid.
Further, shown in the dotted portion among Fig. 4 a, the benchmark determining unit can comprise further that second benchmark chooses subelement, and synchronous control unit can further comprise the second Synchronization Control subelement.
Wherein, second benchmark is chosen subelement and is used for that different up channels in the current configuration of same UE do not comprise continuous up DPCH and when comprising discontinuous up DPCH, chooses described discontinuous up DPCH as the timing base up channel.
The second Synchronization Control subelement is used for calculating new Timing Advance according to described discontinuous up DPCH, and obtain being carried at SS order on descending DPCH or the PLCCH according to described new Timing Advance, the SS on other down channel except that described descending DPCH or PLCCH order be set to invalid.
Perhaps, shown in the dotted portion among Fig. 4 b, the benchmark determining unit can comprise further that the 3rd benchmark chooses subelement, and synchronous control unit can further comprise the 3rd Synchronization Control subelement.
Wherein, the 3rd benchmark is chosen subelement, be used for that different up channels in the current configuration of same UE do not comprise continuous up DPCH and when comprising the E-PUCH of discontinuous up DPCH and non-scheduling, choose and send less at interval up channel in the two as the timing base up channel.
The 3rd Synchronization Control subelement is used for calculating new Timing Advance according to selected up channel, and obtain being carried at SS order on the down channel of corresponding selected up channel according to described new Timing Advance, the SS on other down channel except that the down channel of the selected up channel of described correspondence order be set to invalid.
Or shown in the dotted portion among Fig. 4 c, the benchmark determining unit can comprise further that the 4th benchmark chooses subelement, and synchronous control unit can further comprise the 4th Synchronization Control subelement.
Wherein, when the 4th benchmark was chosen subelement and is used for different up channels in the current configuration of same UE and do not comprise continuous up DPCH, choice of dynamical the last time was finished the up channel of up transmission as current timing base up channel from other up channel.
Any one up channel in a plurality of up channels that the 4th Synchronization Control subelement is used for receiving according to current subframe calculates new Timing Advance, or after calculating a Timing Advance respectively according to each up channel that receives in the current subframe, the weighted average of each Timing Advance as new Timing Advance, or is calculated new Timing Advance according to a up channel that receives in the current subframe; According to the adjustment step-length number that the Timing Advance needs are adjusted, determine the SS command number M that needs; When the down channel that is used for the up channel transmission SS order of corresponding current configuration less than UE at described SS command number M is counted N, Node B chooses M down channel and sends a SS order one by one from a described N down channel, and the SS in other N-M down channel order be set to invalid, perhaps Node B chooses down channel and sends the SS order from a described N down channel, and the SS in other N-1 down channel order be set to invalid.
Fig. 5 is the exemplary block diagram of UE in the embodiment of the invention.As shown in Figure 5, this UE comprises: benchmark determination module and synchronization control module.
Wherein, the benchmark determination module is used for choosing a timing base up channel according to the selection rule of setting from the different up channels of the current configuration of self UE, with the Timing Advance of the described timing base up channel unified Timing Advance as each up channel of current configuration.
Synchronization control module is used for according to described unified Timing Advance current each up channel to be sent being carried out uplink synchronous control.
During specific implementation, according to different network systems and actual needs, benchmark determining unit in the base station and synchronous control unit can have multiple specific implementation form.
With the TD-SCDMA system is example, and Fig. 6 a to Fig. 6 c is several internal structure schematic diagrames of UE in the TD-SCDMA system in the embodiment of the invention.Shown in the solid line among Fig. 6 a to Fig. 6 c part, the benchmark determination module can comprise that first benchmark chooses submodule, and synchronization control module can comprise the first Synchronization Control submodule.
Wherein, when first benchmark is chosen submodule and is used for different up channels in the current configuration of self UE and comprises continuous up DPCH, choose described continuous up DPCH as the timing base up channel.
The first Synchronization Control submodule, be used for the unified Timing Advance of current each up channel to be sent being adjusted, and ignore the SS that carries on other down channel except that described descending DPCH or PLCCH and order according to the simultaneous bias SS that carries on descending DPCH or public physic channel PLCCH order.
Further, shown in the dotted portion among Fig. 6 a, the benchmark determination module can comprise further that second benchmark chooses submodule.
Wherein, second benchmark is chosen submodule and is used for that different up channels in the current configuration of self UE do not comprise continuous up DPCH and when comprising discontinuous up DPCH, chooses described discontinuous up DPCH as the timing base up channel.
Perhaps, shown in the dotted portion among Fig. 6 b, the benchmark determination module can comprise further that the 3rd benchmark chooses submodule, and synchronization control module can further comprise the 3rd Synchronization Control submodule.
Wherein, the 3rd benchmark is chosen submodule and is used for that different up channels in the current configuration of self UE do not comprise continuous up DPCH and when comprising the E-PUCH of discontinuous up DPCH and non-scheduling, chooses and send less at interval up channel in the two as the timing base up channel.
The 3rd Synchronization Control submodule is used for the SS order of carrying on the down channel according to selected up channel correspondence to be adjusted the unified Timing Advance of current each up channel to be sent, and ignores the SS that carries on other down channel except that the down channel of described selected up channel correspondence and order.
Or shown in the dotted portion among Fig. 6 c, the benchmark determination module can comprise further that the 4th benchmark chooses submodule, and synchronization control module can further comprise the 4th Synchronization Control submodule.
Wherein, when the 4th benchmark was chosen submodule and is used for different up channels in the current configuration of self UE and do not comprise continuous up DPCH, choice of dynamical the last time was finished the up channel of up transmission as current timing base up channel from other up channel.
The simultaneous bias SS that carries on the down channel that the 4th Synchronization Control submodule is used for receiving according to the last time order is adjusted the unified Timing Advance of current each up channel to be sent.
Technical scheme in the embodiment of the invention compared with prior art, can overcome UE in the prior art safeguards a plurality of Timing Advances to different channels shortcoming, the Timing Advance of the different channels of UE on same subframe or same time slot is identical, improve the net synchronization capability of UE and even whole system, and then improved throughput.When not having continuous up DPCH, using mutually synchronously of each channel improved the Synchronization Control frequency, thereby improved net synchronization capability.
Above-described specific embodiment; purpose of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the above only is preferred embodiment of the present invention; be not to be used to limit protection scope of the present invention; within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (24)
1, a kind of ascending synchronous control method is characterized in that, this method comprises:
From the different up channels of the current configuration of same user equipment (UE), choose a timing base up channel according to the selection rule of setting;
With the Timing Advance of described timing base up channel unified Timing Advance as each up channel of the current configuration of this UE;
According to described unified Timing Advance current each up channel to be sent of this UE is carried out uplink synchronous control.
2, the method for claim 1, it is characterized in that the different up channels of the current configuration of described same UE comprise: the continuous uplink special physical channel DPCH in the TD SDMA TD-SCDMA system, discrete up DPCH, high speed HS-DSCH share any two kinds or multiple arbitrarily among the E-PUCH of the E-DCH physical uplink channel E-PUCH of information channel HS-SICH, scheduling and non-scheduling.
3, method as claimed in claim 2 is characterized in that, the selection rule of described setting comprises: when comprising continuous up DPCH in the different up channels of the current configuration of described same UE, choose described continuous up DPCH as the timing base up channel.
4, method as claimed in claim 3 is characterized in that, the selection rule of described setting further comprises: when not comprising continuous up DPCH in the different up channels of the current configuration of described same UE, choose the timing base up channel from other up channel.
5, method as claimed in claim 4, it is characterized in that, the described timing base up channel of choosing from other up channel is: when comprising discontinuous up DPCH in the different up channels of the current configuration of described same UE, choose described discontinuous up DPCH as the timing base up channel.
6, as claim 3 or 5 described methods, it is characterized in that, describedly according to unified Timing Advance current each up channel to be sent of this UE is carried out uplink synchronous control and comprise: UE adjusts the unified Timing Advance of current each up channel to be sent according to the simultaneous bias SS order of carrying on descending DPCH or the public physic channel PLCCH, and ignores the SS that carries on other down channel except that described descending DPCH or PLCCH and order.
7, method as claimed in claim 6, it is characterized in that, describedly according to unified Timing Advance current each up channel to be sent of this UE is carried out uplink synchronous control and further comprise: base station node B be carried at SS on other down channel except that described descending DPCH or PLCCH order be set to invalid.
8, method as claimed in claim 4, it is characterized in that, the described timing base up channel of choosing from other up channel is: when comprising the E-PUCH of discontinuous up DPCH and non-scheduling in the different up channels of the current configuration of described same UE, choose and send less at interval up channel in the two as the timing base up channel.
9, method as claimed in claim 8, it is characterized in that, describedly according to unified Timing Advance current each up channel to be sent of this UE is carried out uplink synchronous control and comprise: the SS order of carrying on the down channel of UE according to selected up channel correspondence is adjusted the unified Timing Advance of current each up channel to be sent, and ignores the SS that carries on other down channel except that the down channel of described selected up channel correspondence and order.
10, method as claimed in claim 9, it is characterized in that, describedly according to unified Timing Advance current each up channel to be sent of this UE is carried out uplink synchronous control and further comprise: NodeB be carried at SS on other down channel the down channel that removes described selected up channel correspondence order be set to invalid.
11, method as claimed in claim 4, it is characterized in that the described timing base up channel of choosing from other up channel is: choice of dynamical the last time is finished the up channel of up transmission as current timing base up channel from other up channel.
12, method as claimed in claim 11, it is characterized in that, describedly according to unified Timing Advance current each up channel to be sent of this UE is carried out uplink synchronous control and comprise: the simultaneous bias SS order of carrying on the down channel that UE received according to the last time is adjusted the unified Timing Advance of current each up channel to be sent.
13, method as claimed in claim 12 is characterized in that, the simultaneous bias SS order of carrying on the down channel that described UE received according to the last time further comprises before the unified Timing Advance of current each up channel to be sent is adjusted:
Node B calculates new Timing Advance, according to the adjustment step-length number that the Timing Advance needs are adjusted, determines the SS command number M that needs;
When the down channel that is used for the up channel transmission SS order of corresponding current configuration less than UE at described SS command number M is counted N, Node B chooses M down channel and sends SS order one by one from a described N down channel, and the SS in other N-M down channel order be set to invalid; Perhaps Node B chooses down channel and sends the SS order from a described N down channel, and the SS in other N-1 down channel order be set to invalid.
14, method as claimed in claim 13 is characterized in that, described new Timing Advance is: the Timing Advance that calculates according to any one up channel in a plurality of up channels that receive in the current subframe;
Perhaps be: the weighted average of the Timing Advance that calculates according to each up channel that receives in the current subframe;
Perhaps be: according to a Timing Advance that up channel calculates that receives in the current subframe.
15, a kind of base station is characterized in that, this base station comprises:
The benchmark determining unit, be used for choosing a timing base up channel from the different up channels of the current configuration of same UE, with the Timing Advance of described timing base up channel unified Timing Advance as each up channel of the current configuration of this UE according to the selection rule of setting;
Synchronous control unit is used for according to described unified Timing Advance current each up channel to be sent of this UE being carried out uplink synchronous control.
16, base station as claimed in claim 15, it is characterized in that, described benchmark determining unit comprises that first benchmark chooses subelement, when being used for different up channels in the current configuration of same UE and comprising continuous up DPCH, chooses described continuous up DPCH as the timing base up channel;
Described synchronous control unit comprises the first Synchronization Control subelement, be used for calculating new Timing Advance according to described continuous up DPCH, and obtain being carried at SS order on descending DPCH or the PLCCH according to described new Timing Advance, the SS on other down channel except that described descending DPCH or PLCCH order be set to invalid.
17, base station as claimed in claim 16, it is characterized in that, described benchmark determining unit comprises that further second benchmark chooses subelement, be used for that different up channels in the current configuration of same UE do not comprise continuous up DPCH and when comprising discontinuous up DPCH, choose described discontinuous up DPCH as the timing base up channel;
Described synchronous control unit further comprises the second Synchronization Control subelement, be used for calculating new Timing Advance according to described discontinuous up DPCH, and obtain being carried at SS order on descending DPCH or the PLCCH according to described new Timing Advance, the SS on other down channel except that described descending DPCH or PLCCH order be set to invalid.
18, base station as claimed in claim 16, it is characterized in that, described benchmark determining unit comprises that further the 3rd benchmark chooses subelement, be used for that different up channels in the current configuration of same UE do not comprise continuous up DPCH and when comprising the E-PUCH of discontinuous up DPCH and non-scheduling, choose and send less at interval up channel in the two as the timing base up channel;
Described synchronous control unit further comprises the 3rd Synchronization Control subelement, be used for calculating new Timing Advance according to selected up channel, and obtain being carried at SS order on the down channel of corresponding selected up channel according to described new Timing Advance, the SS on other down channel except that the down channel of the selected up channel of described correspondence order be set to invalid.
19, base station as claimed in claim 16, it is characterized in that, described benchmark determining unit comprises that further the 4th benchmark chooses subelement, when being used for different up channels in the current configuration of same UE and not comprising continuous up DPCH, choice of dynamical the last time is finished the up channel of up transmission as current timing base up channel from other up channel;
Described synchronous control unit further comprises the 4th Synchronization Control subelement, any one up channel in a plurality of up channels that are used for receiving according to current subframe calculates new Timing Advance, or after calculating a Timing Advance respectively according to each up channel that receives in the current subframe, the weighted average of each Timing Advance as new Timing Advance, or is calculated new Timing Advance according to a up channel that receives in the current subframe; According to the adjustment step-length number that the Timing Advance needs are adjusted, determine the SS command number M that needs; When the down channel that is used for the up channel transmission SS order of corresponding current configuration less than UE at described SS command number M is counted N, Node B chooses M down channel and sends a SS order one by one from a described N down channel, and the SS in other N-M down channel order be set to invalid, perhaps NodeB chooses down channel and sends the SS order from a described N down channel, and the SS in other N-1 down channel order be set to invalid.
20, a kind of user equipment (UE) is characterized in that, this UE comprises:
The benchmark determination module, be used for choosing a timing base up channel from the different up channels of the current configuration of self UE, with the Timing Advance of described timing base up channel unified Timing Advance as each up channel of current configuration according to the selection rule of setting;
Synchronization control module is used for according to described unified Timing Advance current each up channel to be sent being carried out uplink synchronous control.
21, UE as claimed in claim 20, it is characterized in that, described benchmark determination module comprises that first benchmark chooses submodule, when being used for different up channels in the current configuration of self UE and comprising continuous up DPCH, chooses described continuous up DPCH as the timing base up channel;
Described synchronization control module comprises the first Synchronization Control submodule, is used for according to the simultaneous bias SS that carries on descending DPCH or public physic channel PLCCH order the unified Timing Advance of current each up channel to be sent being adjusted.
22, UE as claimed in claim 21, it is characterized in that, described benchmark determination module comprises that further second benchmark chooses submodule, be used for that different up channels in the current configuration of self UE do not comprise continuous up DPCH and when comprising discontinuous up DPCH, choose described discontinuous up DPCH as the timing base up channel.
23, UE as claimed in claim 21, it is characterized in that, described benchmark determination module comprises that further the 3rd benchmark chooses submodule, be used for that different up channels in the current configuration of self UE do not comprise continuous up DPCH and when comprising the E-PUCH of discontinuous up DPCH and non-scheduling, choose and send less at interval up channel in the two as the timing base up channel;
Described synchronization control module comprises the 3rd Synchronization Control submodule, and the SS order that is used for carrying on the down channel according to selected up channel correspondence is adjusted the unified Timing Advance of current each up channel to be sent.
24, UE as claimed in claim 21, it is characterized in that, described benchmark determination module comprises that further the 4th benchmark chooses submodule, when being used for different up channels in the current configuration of self UE and not comprising continuous up DPCH, choice of dynamical the last time is finished the up channel of up transmission as current timing base up channel from other up channel;
Described synchronization control module comprises the 4th Synchronization Control submodule, and the simultaneous bias SS that carries on the down channel that is used for receiving according to the last time order is adjusted the unified Timing Advance of current each up channel to be sent.
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